| Novel Ru - K/Carbon Nanotubes Catalyst for Ammonia Synthesis |
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| 引用本文： | Yun CAI,Jing Dong LIN,Hong Bo CHEN,Hong Bin ZHANG,Guo Dong LIN, Dai Wei LIAO (State Key Lab of Physical Chemistry on Solid Surfaces. Department of Chemistry Institute of Physical Chemistry. Xiamen University,Xiamen 361005). Novel Ru - K/Carbon Nanotubes Catalyst for Ammonia Synthesis[J]. 中国化学快报, 2000, 11(4) |
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| 作者姓名： | Yun CAI Jing Dong LIN Hong Bo CHEN Hong Bin ZHANG Guo Dong LIN Dai Wei LIAO (State Key Lab of Physical Chemistry on Solid Surfaces. Department of Chemistry Institute of Physical Chemistry. Xiamen University Xiamen 361005) |
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| 作者单位： | State Key Lab of Physical Chemistry on Solid Surfaces. Department of Chemistry Institute of Physical Chemistry. Xiamen University，Xiamen 361005 |
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| 基金项目： | NSF of China !(#29773037 )，NSF of Fujian province!(#E9910001 )，opening project grant from the State Key Lab of phys. Chem. |
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| 摘 要： | Since 1970s alkali metal-promoted ruthenium was found to be an active catalyst forammonia synthesis under atmospheric pressure, ruthenium catalysts come to beconsidered as a second-generation-catalyst for ammonia synthesis after the iron-basedcatalyst'-=. We have reported the activity of ammonia synthesis of ruthenium-basedcatalysts on various supports previously and found that fullerene was the best support'.Recently, we used the carbon nanotubes, which have metallic or semiconductingproperti…
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Novel Ru - K/Carbon Nanotubes Catalyst for Ammonia Synthesis |
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| Yun CAI,Jing Dong LIN,Hong Bo CHEN,Hong Bin ZHANG,Guo Dong LIN,Dai Wei LIAO. Novel Ru - K/Carbon Nanotubes Catalyst for Ammonia Synthesis[J]. Chinese Chemical Letters, 2000, 11(4) |
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| Authors: | Yun CAI Jing Dong LIN Hong Bo CHEN Hong Bin ZHANG Guo Dong LIN Dai Wei LIAO |
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| Abstract: | A novel ammonia synthesis catalyst, potassium-promoted ruthenium supported on carbon nanotubes, was developed. It was found that the Ru-K/carbon nanotubes catalyst had higher activity for ammonia synthesis (20.85 ml NH_3/h/g-cat ) than the Ru-K/fullerenes (13.3 ml NH_3/h/g-cat ) at atmospheric pressure and 623 K. The catalyst had activity even at 473 K. and had the highest activity (23.46 ml NH_3/h/g-cat ) at 643 K. It was suggested that the multi-walled structure favored the electron transfer the hydrogen-storage and the hydrogen-spill which were favorable to ammonia synthesis. |
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| Keywords: | Ammonia synthesis ruthenium carbon nanotubes |
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